Explain what POP3 is. How does is differ from POP? - Networking

Explain what POP3 is. How does is differ from POP?

POP3 is a protocol that is used for downloading email from an ISP to the recipient mail program. POP3 allows mail retrieval by a workstation for receiving mail which is held by the server. Among stations, POP3 transmissions appear as data messages.

POP was designed for the purpose of supporting ‘offline’ mail processing. Mail is delivered to a server. A PC uses invokes the ail client program periodically which connects to the server and all pending mails is delivered to users own machine.
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